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Cell size and wall ...
Cell size and wall dimensions drive distinct variability of earlywood and latewood density in Northern Hemisphere conifers
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Bjorklund, J. (författare)
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- Seftigen, Kristina, 1985 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Schweingruber, F. (författare)
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Fonti, P. (författare)
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von Arx, G. (författare)
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Bryukhanova, M. V. (författare)
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Cuny, H. E. (författare)
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Carrer, M. (författare)
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Castagneri, D. (författare)
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Frank, D. C. (författare)
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(creator_code:org_t)
- 2017-06-21
- 2017
- Engelska.
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Ingår i: New Phytologist. - : Wiley. - 0028-646X .- 1469-8137. ; 216:3, s. 728-740
- Relaterad länk:
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https://nph.onlineli...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Interannual variability of wood density - an important plant functional trait and environmental proxy - in conifers is poorly understood. We therefore explored the anatomical basis of density. We hypothesized that earlywood density is determined by tracheid size and latewood density by wall dimensions, reflecting their different functional tasks. To determine general patterns of variability, density parameters from 27 species and 349 sites across the Northern Hemisphere were correlated to tree-ring width parameters and local climate. We performed the same analyses with density and width derived from anatomical data comprising two species and eight sites. The contributions of tracheid size and wall dimensions to density were disentangled with sensitivity analyses. Notably, correlations between density and width shifted from negative to positive moving from earlywood to latewood. Temperature responses of density varied intraseasonally in strength and sign. The sensitivity analyses revealed tracheid size as the main determinant of earlywood density, while wall dimensions become more influential for latewood density. Our novel approach of integrating detailed anatomical data with large-scale tree-ring data allowed us to contribute to an improved understanding of interannual variations of conifer growth and to illustrate how conifers balance investments in the competing xylem functions of hydraulics and mechanical support.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Nyckelord
- dendroclimatology
- ring width
- tracheid anatomy
- tree-ring network
- wood density
- xylem function
- tree-ring width
- pseudotsuga-menziesii mirb.
- wood density
- radial
- growth
- douglas-fir
- carbon allocation
- picea-abies
- time-series
- climate
- temperature
- Plant Sciences
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
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Bjorklund, J.
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Seftigen, Kristi ...
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Schweingruber, F ...
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Fonti, P.
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von Arx, G.
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Bryukhanova, M. ...
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visa fler...
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Cuny, H. E.
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Carrer, M.
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Castagneri, D.
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Frank, D. C.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Klimatforskning
- Artiklar i publikationen
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New Phytologist
- Av lärosätet
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Göteborgs universitet